#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdlib.h>

typedef struct CWallet {
  char *msg_key;
  char *master_key;
  char *second_key;
  char *backup_key;
} CWallet;

struct CWallet new_wallet(const char *msg);

struct CWallet restore_wallet(const struct CWallet *cw);

struct CWallet reset_wallet(const struct CWallet *cw);

void free_cwallet(struct CWallet cw);

char *get_address(const struct CWallet *cw);

char *generate_sec_key(const struct CWallet *cw);

char *sign(const struct CWallet *cw, const char *msg);

char *sign_for_tran(const struct CWallet *cw, const char *msg);